I tried and couldn't get any further either! Interestingly enough, if you crunch it through the sudoku draw you get this remark:

'This puzzle may not be solvable using simple logic alone. It may require look ahead logic that this tool doesn't understand, or trial and error, or it may have more than one solution, or no legal solution. This tool should clearly be able to tell the difference, but can't right now!'

Might be the time to write to the paper asking for clarification! One wouldn't like to think the sudoku site can't understand the logic employed, or a quality newspaper resorts to something as vulgar as 'trial and error'. I did think it seemed likely that R8C7 would be a 3 (75% chance) so I am going ahead with that for now.
Cheers,
Hugo